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公开(公告)号：US20230094440A1
公开(公告)日：2023-03-30
申请号：US17956443
申请日：2022-09-29
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Beomwoo GU , Jaeseok PARK , Jaehyun PARK , Youngho RYU , Jungkyu HAN
Abstract: According to various embodiments, an example wireless power transmitter may include a transistor configured to output an amplified signal based on an input signal and a driving voltage, a first capacitor coupled to the transistor in parallel, a first LC resonant circuit coupled to the transistor in parallel and including a first inductor and a second capacitor coupled to the first inductor in series, a third capacitor having a first end coupled to an output terminal of the transistor and the first LC resonant circuit, a feeding coil coupled to a second end of the third capacitor in series, and having at least a part configured to form a second LC resonant circuit with the third capacitor, and a transmission resonator including a transmission coil and a fourth capacitor coupled to the transmission coil in series. At least a part of the transmission coil may be magnetically coupled with the feeding coil, and at least a part of power received from the feeding coil may be output to an outside through the transmission resonator.
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12.发明申请公开(公告)号：US20230040473A1
公开(公告)日：2023-02-09
申请号：US17970216
申请日：2022-10-20
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Beomwoo GU , Jaeseok PARK , Jaehyun PARK , Jaesun SHIN , Jihyun YANG , Jeongman LEE , Seogyong JEONG , Hyoseok HAN
Abstract: An electronic device may include: a resonance circuit which comprises a battery, a coil and a capacitor, and receives power wirelessly; a rectifier which rectifies AC power, provided from the resonance circuit, to DC power; a DC/DC converter which converts and outputs the DC power provided from the rectifier; a charger which charges the battery by using the converted power provided from the DC/DC converter; a first OVP circuit which selectively connects the coil to the capacitor; a second OVP circuit which is connected in parallel to the first OVP circuit; a detection circuit which detects a rectified voltage; a control circuit; and a communication circuit, wherein the control circuit, on the basis that the detected rectified voltage is equal to or greater than a first threshold voltage, controls the first OVP circuit so as to be in an off state so that the coil is not connected to the capacitor, and on the basis that the detected rectified voltage is less than a second threshold voltage, controls the first OVP circuit so that the first OVP circuit is switched from the off state to an on state so that the coil is connected to the capacitor, wherein the second threshold voltage may be smaller than the first threshold voltage.
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公开(公告)号：US20220158588A1
公开(公告)日：2022-05-19
申请号：US17430173
申请日：2020-02-11
Inventor： Sungku YEO , Seunghun WANG , Songcheol HONG , Jaeseok PARK , Jinseok PARK , Chongmin LEE
Abstract: An electronic circuit according to various embodiments may comprise: a switch circuit, wherein the switch circuit may comprise: a first switch connected to a first port and a second switch connected to a second port, the first and second switches being connected in series with each other; a first parallel switch connected to a node between the first switch and the second switch; and a first shunt inductor connected to the node between the first switch and the second switch and configured to cancel a parasitic capacitance component of the first parallel switch.
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14.发明公开公开(公告)号：US20240305137A1
公开(公告)日：2024-09-12
申请号：US18582066
申请日：2024-02-20
Applicant: Samsung Electronics Co., Ltd.
Inventor： Beomwoo GU , Minbeom KO , Jaeseok PARK , Jaehyun PARK , Kangho BYUN , Sungku YEO
CPC classification number: H02J50/12 , H02J50/005 , H02J50/40 , H02J50/80
Abstract: According to an embodiment, a wireless power reception device may include: a housing, a first coil, and a power processing circuit configured to process power wirelessly received from the outside through the first coil. The housing may include a first surface facing a first direction, a second surface facing a second direction opposite the first direction, and a third surface surrounding a space between the first surface and the second the surface. The width of the third surface may be smaller than the width of the first surface. The first coil may be disposed in a region including a region substantially parallel to the third surface.
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公开(公告)号：US20230170743A1
公开(公告)日：2023-06-01
申请号：US18070854
申请日：2022-11-29
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Beomwoo GU , Jaeseok PARK , Jaehyun PARK , Sungku YEO , Jungkyu HAN
Abstract: A wireless power transmitter may include a power amplifier configured to output an amplified signal based on an input signal and a driving voltage, a first LC resonant circuit connected in parallel to the power amplifier, a matching circuit, and a transmission coil connected to the matching circuit. The matching circuit may include a second LC resonant circuit including a first inductor and a first capacitor connected in series to the first inductor, and having one end connected to an output terminal of the power amplifier and one end of the first LC resonant circuit, and a second capacitor and a third capacitor respectively connected to the other end of the second LC resonant circuit. The first inductor may be configured to have an inductance value leading to an impedance of the second LC resonant circuit equal to or greater than a first predetermined magnitude at at least one second or higher harmonic frequency of an operating frequency of the input signal.
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Patent Agency Ranking
公开(公告)号：US20230053209A1
公开(公告)日：2023-02-16
申请号：US17886029
申请日：2022-08-11
Applicant: Samsung Electronics Co., Ltd.
Inventor： Jaehyun PARK , Beomwoo GU , Jaeseok PARK , Sungku YEO , Youngho RYU , Kyungwoo LEE , Jeongman LEE
Abstract: An annular resonator and a wireless power transmitter are provided. The annular resonator includes upper and lower surfaces, outer and inner surfaces arranged along an annular shape, a plurality of conductors, and a plurality of capacitors connected to the plurality of conductors, respectively. Each conductor includes a first section arranged on the upper surface, a second section extending from the first section and arranged on the outer surface, a third section extending from the second section and arranged on the lower surface, and a fourth section extending from the third section and arranged on the inner surface. A first section of each of a first conductor, a second conductor, a third conductor, and a fourth conductor are sequentially arranged along the upper surface. A second section of each of the second conductor, the third conductor, the fourth conductor, and the first conductor are sequentially arranged along the outer surface.
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17.发明申请公开(公告)号：US20230006470A1
公开(公告)日：2023-01-05
申请号：US17751105
申请日：2022-05-23
Applicant: Samsung Electronics Co., Ltd.
Inventor： Wonkyung JANG , Kawon CHEON , Jaeseok PARK , Jaehyun PARK , Joayoung LEE , Hoon HAN
Abstract: A wireless power receiving device includes a first housing, a second housing coupled to the first housing to be changed in relative position with respect to the first housing, a first resonance circuit disposed in the first housing, and at least one processor. The at least one processor may be configured to control the wireless power receiving device to wirelessly receive power from a wireless power transmitting device through the first resonance circuit, identify a charging efficiency corresponding to the received wireless power, and in case the identified charging efficiency is less than a threshold, provide content for changing an angle between the first housing and the second housing.
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18.发明申请公开(公告)号：US20220006333A1
公开(公告)日：2022-01-06
申请号：US17448256
申请日：2021-09-21
Inventor： Sungku YEO , Jaeseok PARK , Kangyoon LEE , Chongmin LEE , Imran ALI , Kwantae KIM , Dongin KIM , Seongjin OH , Solhee IN
Abstract: The present disclosure relates to an artificial intelligence (AI) system which simulates functions such as cognition, judgment, and the like of the human brain by utilizing machine learning algorithms such as deep learning and the like, and to an application thereof. According to various embodiments, an electronic device may comprise: a first impedance matching circuit configured to perform a first impedance matching on a power signal wirelessly received from a wireless power transmission device; a second impedance matching circuit configured to perform a second impedance matching on the first impedance-matched power signal using any one impedance value among a plurality of impedance values; a control circuit configured to perform control to change an impedance value of the second impedance matching circuit to an impedance value learned using an impedance matching network model, corresponding to a power and a frequency of the second impedance-matched power signal; and a power conversion circuit configured to convert a second impedance-matched power signal in an AC form into a power in a DC form for charging a battery according to the changed impedance value.
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公开(公告)号：US20210376668A1
公开(公告)日：2021-12-02
申请号：US17330932
申请日：2021-05-26
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Jeongman LEE , Beomwoo GU , Jaeseok PARK , Jaehyun PARK , Sungku YEO , Chongmin LEE , Hyoseok HAN
Abstract: The disclosure provides an electronic device and a method for controlling wireless charging in the electronic device. An electronic device includes: a sensor, a battery, a resonance circuit configured to wirelessly receive power, a rectification circuit configured to rectify an alternating current (AC) power provided from the resonance circuit into a direct current (DC) power, a DC/DC converter configured to convert the DC power provided from the rectification circuit to output a converted power, a charging control circuit configured to charge the battery using the converted power provided from the DC/DC converter, and a controller, and the controller may be configured to: identify movement information of the electronic device corresponding to a value sensed via the sensor, identify a voltage value of the DC power rectified via the rectification circuit, and control an output of the DC/DC converter based on the movement information and the voltage value.
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20.发明申请公开(公告)号：US20210320530A1
公开(公告)日：2021-10-14
申请号：US17267996
申请日：2019-08-14
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Sangwook LEE , Chongmin LEE , Daehyun KIM , Jaeseok PARK , Hyoseok HAN , Seunghyun LEE
Abstract: A wireless power receiving device, according to the disclosure, comprises: at least one power receiving antenna for sequentially receiving a plurality of different RF waves formed by a wireless power transmitting device; a communication circuit; and at least one processor, wherein the at least one processor is configured to confirm a plurality of pieces of strength information that indicates the strength of each of the plurality of different RF waves, confirm a plurality of pieces of phase information corresponding to each of the plurality of different RF waves, confirm, on the basis of the plurality of pieces of strength information and the plurality of pieces of phase information, an optimum phase value such that a received RF wave has a maximum strength, and transmit a communication signal including information about the optimum phase value to the wireless power transmitting device through the communication circuit. Additional various embodiments are possible.
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